/*******************************************************************************
 * IBM Confidential
 * 
 * OCO Source Materials
 * 
 * A and PM: PD
 * 
 * (c) Copyright IBM Corp. 2014
 * 
 * The source code for this program is not published or otherwise divested of
 * its trade secrets, irrespective of what has been deposited with the U.S.
 * Copyright Office.
 ******************************************************************************/

define([
	"dojo/_base/declare", 
	"dojox/xml/parser",
	"dojo/_base/array",
	"dojo/query",
	"pd/model/deltaSpec"
],function(declare, xmlParser, array, query, deltaSpec){
	var PdColumnAnalyser = declare("pd/data/PdColumnAnalyser", [], {
		constructor: function(args) {
			if (!args.xmlInput){
				throw new Error(PDMSG.ERR.IDS_ERR_MISSING_XMLDOC_PARAM);
			}
			this.xmlInput = args.xmlInput;
			if (typeof(args.xmlInput) == "string"){
				this.xmlDoc = xmlParser.parse(dojo.trim(args.xmlInput));
			} else {
				this.xmlDoc = args.xmlInput;
			}
			this.inherited(arguments);
		},
		
		getDeltaFromXml: function() {
			var delta = {};
			
	    	for (var i=0; i<deltaSpec.length; i++){
				var section = [];
				var xmlDoc = this.xmlDoc.selectSingleNode("/pdSpec/delta/" + deltaSpec[i].name);
				if (xmlDoc != null) {
			    	array.some(
						xmlDoc.childNodes, function(rowNode, index, arr){
							section[index] = {
								name: rowNode.getAttribute("name"),
								simpletype: rowNode.getAttribute("simpletype"),
								previoustype: rowNode.getAttribute("previoustype")
							};
						}
					);
		    	}
		    	delta[deltaSpec[i].name] = section;
			}
	    	return delta;
		},
		
		getSpecFromXml: function() {
			//prune off preview and delta blob
			prunedNodes = ["personalPreview", "delta"];
			var xmlDoc = xmlParser.parse(dojo.trim(this.xmlInput));
			for (var i=0; i<prunedNodes.length; i++){
				var prunedNode = xmlDoc.selectSingleNode("/pdSpec/" + prunedNodes[i]);
				if (prunedNode){
					prunedNode.parentNode.removeChild(prunedNode); 
				}
			}
			return xmlParser.innerXML(xmlDoc);
		}
	});
	
	return PdColumnAnalyser;
});